Add Android Capacitor app and build workflow

- apps/android/: Capacitor project wrapping the mobile web UI
- www/index.html: full DWM remote UI with first-run server IP setup screen
- capacitor.config.json: app ID com.dibby.wemo, allowMixedContent enabled
- .github/workflows/build-android.yml: builds debug APK on Ubuntu via Gradle

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.github/workflows/build-android.yml

@@ -0,0 +1,78 @@
+name: Build Android APK
+
+on:
+  workflow_dispatch:
+    inputs:
+      tag:
+        description: 'Version tag (e.g. 2.0.0)'
+        required: false
+        default: '2.0.0'
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+
+      - name: Set up Java
+        uses: actions/setup-java@v4
+        with:
+          distribution: 'temurin'
+          java-version: '17'
+
+      - name: Set up Android SDK
+        uses: android-actions/setup-android@v3
+
+      - name: Install Android platform tools
+        run: |
+          sdkmanager "platforms;android-34" "build-tools;34.0.0"
+
+      - name: Install Capacitor dependencies
+        working-directory: apps/android
+        run: npm install
+
+      - name: Add Android platform
+        working-directory: apps/android
+        run: npx cap add android || echo "Android platform already exists"
+
+      - name: Sync Capacitor
+        working-directory: apps/android
+        run: npx cap sync android
+
+      - name: Make gradlew executable
+        working-directory: apps/android/android
+        run: chmod +x gradlew
+
+      - name: Build debug APK
+        working-directory: apps/android/android
+        run: ./gradlew assembleDebug
+
+      - name: Rename APK
+        run: |
+          VERSION="${{ github.event.inputs.tag }}"
+          cp apps/android/android/app/build/outputs/apk/debug/app-debug.apk \
+             "dibby-wemo-$VERSION-android.apk"
+
+      - name: Upload APK artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: dibby-wemo-android-apk
+          path: dibby-wemo-*.apk
+          retention-days: 30
+
+      - name: Upload to GitHub Release
+        if: github.event.inputs.tag != ''
+        uses: softprops/action-gh-release@v2
+        with:
+          tag_name: v${{ github.event.inputs.tag }}
+          files: dibby-wemo-*.apk
+          fail_on_unmatched_files: false
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

apps/android/capacitor.config.json

@@ -0,0 +1,22 @@
+{
+  "appId": "com.dibby.wemo",
+  "appName": "Dibby Wemo",
+  "webDir": "www",
+  "server": {
+    "androidScheme": "https"
+  },
+  "android": {
+    "allowMixedContent": true,
+    "captureInput": true,
+    "webContentsDebuggingEnabled": false
+  },
+  "plugins": {
+    "SplashScreen": {
+      "launchAutoHide": true,
+      "launchShowDuration": 1000,
+      "backgroundColor": "#0d1b27",
+      "androidSplashResourceName": "splash",
+      "showSpinner": false
+    }
+  }
+}

apps/android/package.json

@@ -0,0 +1,19 @@
+{
+  "name": "dibby-wemo-android",
+  "version": "2.0.0",
+  "description": "Dibby Wemo Manager – Android companion app",
+  "private": true,
+  "scripts": {
+    "sync": "cap sync",
+    "open": "cap open android",
+    "build:apk": "cap sync && cd android && ./gradlew assembleDebug",
+    "build:release": "cap sync && cd android && ./gradlew assembleRelease"
+  },
+  "dependencies": {
+    "@capacitor/android": "^6.0.0",
+    "@capacitor/core": "^6.0.0"
+  },
+  "devDependencies": {
+    "@capacitor/cli": "^6.0.0"
+  }
+}